[bug#46728] [PATCH 4/7] gnu: Add s2n.

[Greg Hogan]

Hi Leo,

The CMake configuration [1] has both shared and static dependencies on LibCrypto.

The AWS packages (aws-sdk-cpp and dependencies) are currently built as static libraries. I would like to build both static and shared but could not find an example or simple method for building both using cmake. Do you think it would be worthwhile to extend the cmake-build-system to optionally configure, build, and install static libraries with additional phases? The gnu-build-system makes it easy to inline a new phase into the package definition (when the makefile has both 'make' and 'make static' targets) but with CMake we are forced to duplicate the configure phase, which is 44 lines of code.

Greg

[1] https://github.com/aws/s2n-tls/blob/main/cmake/modules/FindLibCrypto.cmake

On Wed, Feb 24, 2021 at 4:34 PM Leo Famulari <leo@famulari.name> wrote:

On Tue, Feb 23, 2021 at 06:17:06PM -0500, Greg Hogan wrote:
> From 78e69597f63b22a3249853208e88f8f57cf84054 Mon Sep 17 00:00:00 2001
> From: Greg Hogan <code@greghogan.com>
> Date: Tue, 19 Jan 2021 12:52:01 +0000
> Subject: [PATCH 4/7] gnu: Add s2n.
>
> * gnu/packages/tls.scm (s2n): New variable.

Thank you for this patch series!

> +    (propagated-inputs
> +     `(("openssl" ,openssl)
> +       ("openssl:static" ,openssl "static")))

I'm wondering specifically about the use of static OpenSSL in these
patches. It's a little unusual to use statically-linked outputs in Guix.
Is it required for s2n?